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| 0001605301-22-000034.txt | 2022-11-09 14:03:28 | |
 0001605301-22-000034-xbrl.zip | 817984 | 2022-11-09 14:03:28 |
| cbfv-20220930.htm | 3260973 | 2022-11-09 14:03:28 |
| cbfv-20220930.xsd | 52248 | 2022-11-09 14:03:28 |
| cbfv-20220930xex311ceocert.htm | 10767 | 2022-11-09 14:03:28 |
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| cbfv-20220930xex321ceoandc.htm | 7082 | 2022-11-09 14:03:28 |
| cbfv-20220930_cal.xml | 129142 | 2022-11-09 14:03:28 |
| cbfv-20220930_def.xml | 333351 | 2022-11-09 14:03:28 |
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| cbfv-20220930_htm.xml | 3512996 | 2022-11-09 14:03:28 |
| cbfv-20220930_lab.xml | 786633 | 2022-11-09 14:03:28 |
| cbfv-20220930_pre.xml | 545251 | 2022-11-09 14:03:28 |
| FilingSummary.xml | 42518 | 2022-11-09 14:03:28 |
| Financial_Report.xlsx | 121034 | 2022-11-09 14:03:28 |
| MetaLinks.json | 808340 | 2022-11-09 14:03:28 |
| R1.htm | 51550 | 2022-11-09 14:03:28 |
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| report.css | 2767 | 2022-11-09 14:03:28 |
| Show.js | 1085 | 2022-11-09 14:03:28 |